The land below us is always in motion. Plate tectonics studies these restless effects to give us a better understanding of the Earth and its past. New molten rocks are poured out in the form of magma from the mid-ocean ridges. The rock is recycled and re-entered back into the earth in deep ocean trenches through convection current. The convection current in the mantle drives plates around either against or away from each other. These …
showed first 75 words of 2657 total

showed last 75 words of 2657 total
…hot magma separates the land and continents similar to the separation of Pangea, but in time the continents will meet yet again to form another 'super-continent.' The ever new sea floor containing magnetic 'footprints' shows us of a time of magnetic field reversals. These reversals could explain continental drift and its velocity. There has been extensive study in tectonic plates, but there are still unsolved mysteries for one to discover. ------------------------------------------------------------------------ **Bibliography** n/a